N-Biphenyl thioureas as carboxylate receptors.: Effect of the ligand substituents on the geometry of the complexes

被引:24
作者
Costero, Ana M. [1 ]
Gavina, Pablo
Rodriguez-Muniz, Gemma M.
Gil, Salvador
机构
[1] Univ Valencia, Dept Organ Chem, E-46100 Valencia, Spain
[2] Univ Valencia, Inst Ciencia Mol, Valencia, Spain
关键词
D O I
10.1016/j.tet.2006.06.058
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Six new biphenyl thiourea derivatives have been prepared to be used in carboxylate sensing. Experiments carried out with these ligands have demonstrated that the type of interaction with TBA carboxylates is strongly dependent on the substituents in the thiourea moiety. These interactions go from the formation of 1:1 hydrogen-bonded complexes to acid-base reactions. In addition, different geometries have been observed for the complexes being dependent on the conformations of the free ligands in solution. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:8571 / 8577
页数:7
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